Update controller_auth_proxy_patch.yaml (aws#405)

Update the reference from gcr.io to registry.k8s.io

>  kube-rbac-proxy is moving to registry.k8s.io/kubebuilder/kube-rbac-proxy (from gcr.io/kubebuilder/kube-rbac-proxy) because GCR is being sunset. We need to update these references.

Author: orsenthil

config/default/controller_auth_proxy_patch.yaml

@@ -10,7 +10,7 @@ spec:
     spec:
       containers:
       - name: kube-rbac-proxy
-        image: gcr.io/kubebuilder/kube-rbac-proxy:v0.5.0
+        image: registry.k8s.io/kubebuilder/kube-rbac-proxy:v0.5.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8080/"